LOCKING PLATE FOR A FASTENER ARRANGEMENT
A locking plate for a locking arrangement includes a body that is defined by a first planar surface and a second planar surface that is opposite the first planar surface. The body has an arcuate shape that extends from a first lateral end to a second lateral end and extends from a radially inward facing edge to a radially outward facing edge. A single elongated curved opening extends through the body from the first planar surface to the second planar surface and extends an intermediate arc length in the body. An anti-rotation feature extends radially inward from the radially inward facing edge. The body has an anti-tilt lobe located proximate one or more of the first lateral end and the second lateral end.
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This application claims the benefit of prior-filed, co-pending U.S. Provisional Pat. Application No. 63/318,979, filed on Mar. 11, 2022, the entire contents of which is incorporated herein by reference in its entirety.
FIELD OF THE INVENTIONThe present invention is directed to a locking plate for securing the locknut of a mounted bearing that prevents an adapter sleeve or shaft from loosening during operation, and to a fastener locking arrangement incorporating the locking plate.
BACKGROUNDTypically, the locknut of a mounted bearing is secured with a locking plate that prevents the adapter sleeve or shaft from loosening during operation. Such locking plates have an inwardly projecting tab that is configured to fit into a corresponding axial slot in the adapter sleeve or shaft to prevent loosening of the locknut. Although these locking plates may successfully mitigate loosening of the locknut during operation, the locking plates require the use of two or more bolts to fasten the locking plate to the locknut and adapter sleeve or shaft. This makes installing the locking plates a slow and arduous task for users.
Thus, there is a need for an improved locking plate and fastener locking arrangement that addressed the problems described above.
SUMMARYAccording to aspects illustrated herein, there is disclosed a locking plate for a fastener arrangement. The locking plate includes a body that is defined by a first planar surface and a second planar surface that is opposite the first planar surface. The body has an arcuate shape that extends from a first lateral end to a second lateral end and extends from a radially inward facing edge (e.g., a curved edge) to a radially outward facing edge (e.g., a curved edge). A single elongated curved opening extends through the body from the first planar surface to the second planar surface and extends an intermediate arc length in the body. An anti-rotation feature extends radially inward from the radially inward facing edge. The body has an anti-tilt lobe located proximate one or more of the first lateral end and the second lateral end.
In some embodiments, the radially inward facing edge has an inner arc length and the radially outward facing edge has an outer arc length. The outer arc length is of a lesser magnitude than that of the inner arc length.
In some embodiments, the outer arc length extends from a first outer end to a second outer end and a first reduced section extends from the first outer end to the first lateral end, and/or the outer arc length extends from a first outer end to a second outer end and a second reduced section extends from the second outer end to the second lateral end.
In some embodiments, the elongated curved opening terminates in a first semicircle contour which has a first center point and terminates in a second semicircle contour which has a second center point.
In some embodiments, the anti-rotation feature is aligned with the first center point of the elongated curved opening.
In some embodiments, the intermediate arc length of the elongated curved opening is defined by a circumferential segment extending between the first center point of the first semicircle contour and the second center point of the second semicircle.
In some embodiments, the anti-rotation feature is located between the first center point and the second center point.
In some embodiments, the intermediate arc length of the elongated curved opening has a first radius of curvature of about 4 inches to about 14 inches and spans an angle of about 25 degrees to about 35 degrees.
In some embodiments, the body has an inner arc length along the radially inward facing edge from the first lateral end to the second lateral end. The inner arc length has a second radius of curvature of about 3.5 inches to about 11.5 inches and spans an angle of about 75 degrees to about 95 degrees.
In some embodiments, the radially outward facing edge has an outer arc length has a third radius of curvature of about 5.5 inches to about 15 inches and spans an angle of about 25 degrees to about 35 degrees.
In some embodiments, the body has an inner arc length along the radially inward facing edge from the first lateral end to the second lateral end. A ratio of the intermediate arc length of the elongated curved opening to the inner arc length is about 1.1 to about 1.4.
According to aspects illustrated herein, there is disclosed a locking arrangement including a locking plate of any of the preceding embodiments, a first fastener, and a second fastener. The first fastener has a bore that extends therethrough. The bore is defined by a radially inward facing surface. The first fastener has an axial end with a plurality of circumferentially spaced holes extending through the axial end. One or more of the holes has a bolt that extends therethrough. A single one of the bolts extends through the elongated curved opening of the locking plate such that the locking plate is secured between the bolt and the axial end. A portion of the second fastener has an exterior surface that is complementary in shape to the radially inward facing surface of the first fastener. The second fastener is disposed at least partially in the bore of the first fastener such that the exterior surface engages the radially inward facing surface. The exterior surface has a receiving opening that extends axially there along. The anti-rotation feature of the locking plate is positioned in the receiving opening for preventing movement of the first fastener relative to the second fastener.
In some embodiments, the holes are spaced apart from one another by a circumferential arc length. The intermediate arc length of the locking plate is less than the circumferential arc length.
In some embodiments, the radially inward facing edge engages (e.g., in threaded engagement) the exterior surface of the second fastener.
In some embodiments, the anti-tilt lobe engages the exterior surface of the second fastener to prevent tilting of the locking plate relative to the first fastener and the second fastener.
In some embodiments, the anti-tilt lobe extends circumferentially to an adjacent one of the bolts. A portion of the anti-tilt lobe extends radially inward of the adjacent bolt to pin the anti-tilt lobe between the adjacent bolt and the exterior surface of the second fastener.
In some embodiments, the axial end of the first fastener includes one or more protrusions that extend outward therefrom. The anti-tilt lobe extends radially inward of one of the protrusions to pin the anti-tilt lobe between the protrusion and the exterior surface of the second fastener.
In some embodiments, the first fastener is a nut with female threads therein.
In some embodiments, the second fastener is a shaft with external shaft threads thereon and the receiving opening is an axial groove therein, or the second fastener is a sleeve with external sleeve threads thereon and the receiving opening is an axial slot extending therethrough.
In some embodiments, the protrusion is a set screw.
Any of the foregoing embodiments may be combined.
Referring now to the Figures, which are exemplary embodiments, and wherein the like elements are numbered alike:
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While, the radially outward facing edge 1E is shown and described as being curved (e.g., arcuate) the present invention is not limited in this regard as the radially outward facing edge 1E can have other shapes including but not limited to a plurality of discrete interconnecting linear segments.
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In some embodiments, the anti-rotation feature 7 is radially aligned with the first center point 4A of the elongated curved opening 4. For example, in the embodiment shown in
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As will be apparent to those skilled in the art, various modifications, adaptations and variations of the foregoing specific disclosure can be made without departing from the scope of the invention claimed herein. The various features and elements of the invention described herein may be combined in a manner different than the specific examples described or claimed herein without departing from the scope of the invention. In other words, any element or feature may be combined with any other element or feature in different embodiments, unless there is an obvious or inherent incompatibility between the two, or it is specifically excluded.
References in the specification to “one embodiment,” “an embodiment,” “some embodiments,” etc., indicate that the embodiment described may include a particular aspect, feature, structure, or characteristic, but not every embodiment necessarily includes that aspect, feature, structure, or characteristic. Moreover, such phrases may, but do not necessarily, refer to the same embodiment referred to in other portions of the specification.
The singular forms “a,” “an,” and “the” include plural reference unless the context clearly dictates otherwise. Thus, for example, a reference to “a plant” includes a plurality of such plants. It is further noted that the claims may be drafted to exclude any optional element. As such, this statement is intended to serve as antecedent basis for the use of exclusive terminology, such as “solely,” “only,” and the like, in connection with the recitation of claim elements or use of a “negative” limitation. The terms “preferably,” “preferred,” “prefer,” “optionally,” “may,” and similar terms are used to indicate that an item, condition or step being referred to is an optional (not required) feature of the invention.
The term “and/or” means any one of the items, any combination of the items, or all of the items with which this term is associated. The phrase “one or more” is readily understood by one of skill in the art, particularly when read in context of its usage.
Each numerical or measured value in this specification is modified by the term “about”. The term “about” can refer to a variation of ± 5%, ± 10%, ± 20%, or ± 25% of the value specified. For example, “about 50” percent can in some embodiments carry a variation from 45 to 55 percent. For integer ranges, the term “about” can include one or two integers greater than and/or less than a recited integer at each end of the range. Unless indicated otherwise herein, the term “about” is intended to include values and ranges proximate to the recited range that are equivalent in terms of the functionality of the composition, or the embodiment.
As will be understood by the skilled artisan, all numbers, including those expressing quantities of reagents or ingredients, properties such as molecular weight, reaction conditions, and so forth, are approximations and are understood as being optionally modified in all instances by the term “about.” These values can vary depending upon the desired properties sought to be obtained by those skilled in the art utilizing the teachings of the descriptions herein. It is also understood that such values inherently contain variability necessarily resulting from the standard deviations found in their respective testing measurements.
As will be understood by one skilled in the art, for any and all purposes, particularly in terms of providing a written description, all ranges recited herein also encompass any and all possible sub-ranges and combinations of sub-ranges thereof, as well as the individual values making up the range, particularly integer values. A recited range includes each specific value, integer, decimal, or identity within the range. Any listed range can be easily recognized as sufficiently describing and enabling the same range being broken down into at least equal halves, thirds, quarters, fifths, or tenths. As a non-limiting example, each range discussed herein can be readily broken down into a lower third, middle third and upper third, etc.
As will also be understood by one skilled in the art, all language such as “up to”, “at least”, “greater than”, “less than”, “more than”, “or more”, and the like, include the number recited and such terms refer to ranges that can be subsequently broken down into sub-ranges as discussed above. In the same manner, all ratios recited herein also include all sub-ratios falling within the broader ratio. Accordingly, specific values recited for radicals, substituents, and ranges, are for illustration only; they do not exclude other defined values or other values within defined ranges for radicals and substituents.
One skilled in the art will also readily recognize that where members are grouped together in a common manner, such as in a Markush group, the invention encompasses not only the entire group listed as a whole, but each member of the group individually and all possible subgroups of the main group. Additionally, for all purposes, the invention encompasses not only the main group, but also the main group absent one or more of the group members. The invention therefore envisages the explicit exclusion of any one or more of members of a recited group. Accordingly, provisos may apply to any of the disclosed categories or embodiments whereby any one or more of the recited elements, species, or embodiments, may be excluded from such categories or embodiments, for example, as used in an explicit negative limitation.
Claims
1. A locking plate for a locking arrangement, the locking plate comprising:
- a body defined by a first planar surface and a second planar surface opposite the first planar surface, the body having an arcuate shape extending from a first lateral end to a second lateral end and extending from a radially inward facing edge to a radially outward facing edge;
- a single elongated curved opening extending through the body from the first planar surface to the second planar surface and extending an intermediate arc length in the body;
- an anti-rotation feature extending radially inward from the radially inward facing edge; and
- the body having an anti-tilt lobe located proximate at least one of the first lateral end and the second lateral end.
2. The locking plate of claim 1, wherein the radially inward facing edge has an inner arc length and the radially outward facing edge has an outer arc length, the outer arc length being of a lesser magnitude than that of the inner arc length.
3. The locking plate of claim 2, wherein at least one of:
- (a) the outer arc length extends from a first outer end to a second outer end and a first reduced section extends from the first outer end to the first lateral end; and
- (b) the outer arc length extends from a first outer end to a second outer end and a second reduced section extends from the second outer end to the second lateral end.
4. The locking plate of claim 1, wherein the elongated curved opening terminates in a first semicircle contour which has a first center point and terminates in a second semicircle contour which has a second center point.
5. The locking plate of claim 4, wherein the anti-rotation feature is aligned with the first center point of the elongated curved opening.
6. The locking plate of claim 4, wherein the intermediate arc length of the elongated curved opening is defined by a circumferential segment extending between the first center point of the first semicircle contour and the second center point of the second semicircle.
7. The locking plate of claim 4, wherein the anti-rotation feature is located between the first center point and the second center point.
8. The locking plate of claim 1, wherein the intermediate arc length of the elongated curved opening has a first radius of curvature of about 4 inches to about 14 inches and spans a first angle of about 25 degrees to about 35 degrees.
9. The locking plate of claim 1, wherein the body has an inner arc length along the radially inward facing edge from the first lateral end to the second lateral end and the inner arc length has a second radius of curvature of about 3.5 inches to about 11.5 inches and spans a second angle of about 75 degrees to about 95 degrees.
10. The locking plate of claim 1, wherein the radially outward facing edge has an outer arc length has a third radius of curvature of about 5.5 inches to about 15 inches and spans a third angle of about 25 degrees to about 35 degrees.
11. The locking plate of claim 6, wherein the body has an inner arc length along the radially inward facing edge from the first lateral end to the second lateral end and a ratio of the intermediate arc length of the elongated curved opening to the inner arc length is about 1.1 to about 1.4.
12. A locking arrangement comprising:
- a locking plate of claim 1;
- a first fastener having a bore extending therethrough, the bore being defined by a radially inward facing surface, the first fastener having an axial end with a plurality of circumferentially spaced holes extending through the axial end, at least one of the holes having a bolt extending therethrough and a single one of the bolts extending through the elongated curved opening of the locking plate such that the locking plate is secured between the bolt and the axial end; and
- a second fastener having an exterior surface complementary in shape to the radially inward facing surface of the first fastener, the second fastener being disposed at least partially in the bore of the first fastener such that the exterior surface engages the radially inward facing surface, the exterior surface having a receiving opening extending axially therealong;
- wherein the anti-rotation feature of the locking plate is positioned in the receiving opening for preventing movement of the first fastener relative to the second fastener.
13. The locking arrangement of claim 12, wherein the holes are spaced apart from one another by a circumferential arc length and the intermediate arc length of the locking plate is less than the circumferential arc length.
14. The locking arrangement of claim 12, wherein the radially inward facing edge engages the exterior surface of the second fastener.
15. The locking arrangement of claim 12, wherein the anti-tilt lobe engages the exterior surface of the second fastener to prevent tilting of the locking plate relative to the first fastener and the second fastener.
16. The locking arrangement of claim 12, wherein the anti-tilt lobe extends circumferentially to an adjacent one of the bolts and a portion of the anti-tilt lobe extends radially inward of the adjacent bolt to pin the anti-tilt lobe between the adjacent bolt and the exterior surface of the second fastener.
17. The locking arrangement of claim 12, wherein the first fastener is a nut with female threads therein.
18. The locking arrangement of claim 12, wherein the second fastener is one of:
- (a) a shaft with external shaft threads thereon and the receiving opening is an axial groove therein; and
- (b) a sleeve with external sleeve threads thereon and the receiving opening is an axial slot extending therethrough.
Type: Application
Filed: Mar 8, 2023
Publication Date: Sep 14, 2023
Applicant: Dodge Industrial, Inc. (Oxford, CT)
Inventors: Michael Dunn (Piedmont, SC), Todd Reid (Mauldin, SC)
Application Number: 18/119,025